Planing-machine



No. 750,917. PATENTED FEB. 2, 1904.

W. 0. VIVARTTAS. PLANING MACHINE.

APPLIUATION FILED AUG. 1a, 1903.

:10 MODEL. 2 SHEETS-SHEET 1.

IN l/EN TOR WITNESSES;

M ATTORNEYS. 1

PATENTED FEB. 2, 1904.

W. 0. VIVARTTAS.

PLANING MACHINE.

APPLIUATION FILED AUG. 18, 1903.

2 SHEETS-SHEET 2.

N0 MODEL.

W/TNESSES: I mmvron 62% WJM -0 74mm; 72/ 72/ Br z Arron/m6.

Patented February 2, 1904;.

UNITED STATES PAT NT OEEIcE.

WVILLIAH O. VIVARTTAS, OF WEEHAWKEN, NEW JERSEY, ASSIGNOR TO H. B. SMITHMACHINE COMPANY, OF SMITHVILLE, NEW JERSEY, A

CORPORATION OF- NEW JERSEY.

PLANlNG-IVIACHINE.

SPECIFICATION formingpart of Letters Patent No. 750,917, dated February2, 1904.

A li ti fil d August l8, 1903. Serial No. 169,852. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM O. VIVARTTAS, a citizen of the UnitedStates, residing at \Veehawken, county of Hudson, and State of 5 NewJersey, have invented a new and useful Improvement in Planing-Machines,of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, which form a part ofthis specifi- 1 cation.

My invention relates to divided chip-breakers for planers or surfacers.

The object of the invention is to maintain each section of thechip-breaker always in a strictly horizontal position parallel with thebed, while permitting independent vertical movement of the severalsections to enable them to be raised to difierent levels to suit thedifferent thicknesses of lumber fed through t em.

In the drawings, Figure l is a plan view of a machine having a two-piecechip-breaker. Fig, 2 is a section on the line 2 2 of Fig. 1; and Fig. 3is a section, somewhat enlarged, on the line 3 3 of Figs. land 2.

a Z) are the feed-rolls. The feed-roll a rotates in the bearing-box 0,which is adjustable in the frame (Z. There are preferably as manyfeed-rolls or feed-roll sections as there are 3 chip-breaker sections.

t is the bed over which the stock moves.

0 is the cutter-head on a shaft rotatably mounted in the frame f.

g g are the two sections of the chip-breaker.

it is the guide-bar, having arms 2' fulcrumed at j in bearings above andback of the cutterhead shaft. Adjacent to the nose-pieces 7c 79 of thechip-breaker sections are the grooves Z l, into which the lower part ofthe guidebar extends, by which means each section of the chip-breaker isadapted to slide vertically and independently of the other section uponthe guide-bar.

s s s s are springs between the guide-bar 71 and the nose-pieces of thechip-breaker sections 9 g.

The upper laterally-extending end as of the chip-breaker section g-hasbolted to it the cap provided with'recesses z. Projecting upward fromthe guide bar and extending through recesses z are standards m n.

0 p are levers pivoted between their ends to the standards m n,respectively. The adjacent inner ends of levers 0 and p are connectedtogether, a bolt t extending through lever 0 and through a slot-in lever19.

g r are links the lower ends of which are pivoted to the chip-breakersection g and the upper ends of which are pivoted to the outer ends ofthe leversoandp, respectively. Similarly, the upper laterally-extendingend as of the chip-breaker section g has bolted to it the cap y, havingrecesses 2'. Standards m 71. extend upward from the guide-bar throughthe recesses z, to which standards are pivoted the levers 0 9. Theselevers are connected together at their inner ends and connected at theirouter ends by means of links (1' r with the chip-breaker section g.

The operation of the devices described is as follows: The stock firstpasses between the feed-rolls a and b and thence is fed forwardlyunderneath the chip breaker and cutter. Each section of the chip-breakerwill be raised on the slide-bar dependent upon the thickness of thestockthat is, if a relatively thin piece of lumber is put through onesection of the chip breaker and a relatively thick piece through theother section the sections will rise to difierent levels to accommodatethe two different thicknesses of lumber. If we assume that either pieceis narrow in proportion to the width of the section through which itpasses and that it passes through one side of the section, the wholesection will lift up parallel with the bed, thus giving an equalpressure to such narrow piece the same as if it passed through themiddle of the sectionthat is, if such narrow piece of lumber is passedthrough the left-hand side of section 9 of the chip-breaker, Figs. 1 and2, the left-hand side of the section will rise, elevating, through link9, the outer end of lever 0, depressing the inner ends of levers 0 andp, and elevating the outer end of lever 32 thereby through link 1,causing the right-hand end of the section to rise to the exact level ofthe left-hand side, thus maintaining the section exactly level.

Thus it will be understood that the two sections of the chip-breaker areeach always maintained in a strictly horizontal position parallel withthe bed, although they may occupy different levels to suit the diflerentthicknesses of stock that may be fed through them at any one time.

It will be understood that while I have shown the application of myinvention to a two-piece chip-breaker and a two-piece feed-roll it isobvious that there may be any number of chipbreaker sections,corresponding to the number of pieces into which the feed-roll isdivided.

Having now fully described my invention, what I claim, and desire toprotect by Letters Patent, is

1. In a woodworking-machine, in combination, a pivoted supporting-bar, achip-breaker divided into sections each having a groove, said barextending partially into said grooves, a spring confined between saidbar and each chip-breaker section, standards on said bar extending aboveeach chip-breaker section, levers pivoted between their ends to saidstandards, the inner ends of said levers being pivoted together, andlinks pivoted to the outer ends of said levers and extending downwardlyand pivoted to the chip-breaker sections.

2. In a woodworking-machine, in combination, a cutter-head, asupporting-bar pivoted on one side of said cutter-head and extendingover and beyond the same, a chip-breaker divided into sections eachhaving a nose-piece adjacent to the cutter-head and a groove adjacent tosaid nose-piece, the upper portion of each chip-breaker sectionextending laterally, a spring seated in each groove, the free end ofsaid bar extending into said grooves and seatingcagainst said springs,standards secured to the free end of said bar and extending upwardlythrough the laterally-extending por- WILLIAM O. VIVARTTAS.

Witnesses:

M. F. ELLIS, M. M. HAMILTON.

